Zhang Heng and the Stars

Once there was a curious little boy by the name of Zhang Heng.One day in the evening, he and his grandma were sitting outside and looking at the stars. Suddenly Zhang Heng exclaimed,"Grandma,the stars shine like pearls!"His grandma replied,"Yes but do you know what they really are?"Zhang Heng looked confused, but shook his head, no.His grandma said sternly,"Well, if you study hard, maybe one day you will know."So Zhang Heng went inside to study, and he became one of the greatest scientists of all time.The End

Moral:1.If you have perserverance, one day you'll do good.